GK
NUCLEAR SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it is difficult to initiate fusion reaction.
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it is difficult to control fusion reaction.
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the fuel required (e.g. deuterium and tritium) is scarce.
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quantity of fuel required for initiating fusion reaction is prohibitively high.
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Detailed explanation-1: -The simple answer is that it has been particularly difficult to obtain high enough plasma densities, temperatures, and energy confinement times simultaneously for a reactor to approach ignition conditions.
Detailed explanation-2: -Reason: The binding energy 35Cl is too small.
Detailed explanation-3: -Fusion is very hard to get going: the atomic nuclei of the hydrogen isotopes are positively charged, and we know that like charges repel each other. And so it’s very hard to get those nuclei close enough together that the attractive interactions can take over, and that they can actually undergo this reaction.
Detailed explanation-4: -The challenge for breeding is that fusion doesn’t produce enough neutrons, unlike fission, where the chain reaction releases an exponentially growing number. With fusion, each D-T reaction only produces a single neutron, which can breed a single tritium nucleus.